Upper functional equipment of high-purity aluminum electrolysis cell

Functional equipment on the upper portion of a high-purity aluminum electrolytic cell is characterized in that a cover plate matched with an opening in the upper portion of the electrolytic cell is arranged, a first through hole matched with a cathode guide rod is formed in the cover plate, and the cathode guide rod penetrates through the first through hole from top to bottom; the mounting support is further provided with a cover plate lifting device capable of driving the cover plate to ascend and descend. According to the scheme, the cover plate and the cover plate lifting device are additionally arranged, the cathode guide rod penetrates through the cover plate, the cover plate does not affect normal lifting action of the cathode guide rod, lifting action can be achieved through the cover plate lifting device, opening and closing of an opening in the upper portion of the electrolytic cell are achieved, and the opening in the upper portion of the electrolytic cell can be shielded through the cover plate; me